Boat.



I PATENTED JUNE 7, 1904. J. P. HIGKEY.

BOAT

APPLICATION FILE-D 22, 1903.

no nonipL.

' wit-nus UNITED STATES Patented June '7, 1904.

PATENT OFFICE.

BOAT.

SPECIFICATION forming part of Letters Patent No. 761,835, dated June 7, 1904.

Application filed December 22, 1903. Serial No. 186,152. (No model.) I

To aZZ whom it nwty concern.-

Be it known that I, JOHN P. HIoKEY, a citizen of the United States, residing at Washington, in the District of Columbia, have invented certain new and useful Improvements in Boats, of which the following is a specification.

- My present invention pertains to improve'.

ments in boats, the form and advantages of which will be hereinafter set forth, reference being had to the annexed drawings, wherein- Figure 1 is a side elevation of'a boat, show ing the form of hull which constitutes the subject-matter ofmyinvention; Fig. 2, acombined sectional and front elevation showing the lines of the hull at various points thereof; and Figs. 8 to 9, inclusive, sectional views on the lines 3 3 through 9 9 of Fig. 1.

The object of my invention is to so construct the hull of a boat as to obviate any and all abrupt swells or projections in the lines thereof, particularly on the water-line, whereby the resistance of the boat as it is propelled through the water is reduced to a minimum. This result is accomplished by so shaping the hull that the load water-line thereof is practically straight or the curvature of the "line is so slight as to offer no appreciable resistance. This form is produced by maintaining a sharp bow throughout about fifteen or twenty per cent. of the length of the boat and then gradually increasing the outward pitch or overhang of the body of the boat toward the stern, the pitch-line inclining upwardly from the bow to the stern. Inother words, there is no appreciable swell or enlargement of the lines at the bow or forward portion of the boat for a distance of fifteen to twenty per cent. from the front post or timber thereof. At this point the swell or overhang of the body begins, said swell or overhang extending throughout the remainder of the length of the boat and being greatest at the center thereof. The point where the swell or overhang begins at any portion of the boat will be found on a line starting at the junction of the keel with the body" at a point fifteen to twenty percent. in rear of the bow,

the line extending aft and upwardly throughout the remaining length of the boat. This line becomes, in effect. the load water-line of the boat, which by reason of the construction above set forth presents no appreciable swell or enlargement to offer resistance to the passage of the boat through the water.

In the drawings, A denotes the keel of the boat, andBthe body thereof. The load waterline is indicated by the line C D, Fig. 1, the keel inclining downwardly from said line as it extends toward the stern. The depth of the keel is, however, not material and may be varied as desired.

The several sectional views show the lines of the hull at the various points indicated in Fig. 1.

That section of the hull which lies between the load water-line and the upper edge ofthe creasing overhang or swell from said portion to the stern, the line at which said swell begins or has its inception extending upwardly from the keel as it approaches the stern, said line becoming in effect the load water-line, whereby the bow of the boat will have but little draft, substantially as described.

2. A boat having a sharp bow or forward portion extending throughout a substantial portion of its length, with a keel having its lower edge inclining downwardly from the load water-line as itextends from said bow or forward portion to the stern, that portion of the hull which lies between the load waterline and the keel being narrower at the stern and gradually widening as it approaches the bow, substantially as described.

In testimony whereofI have signed my name to this specification in the presence of two subscribing witnesses.

JOHN P. HIOKEY.

Witnesses:

HORACE A. DODGE, CHARLES. H. RAEDER. 

